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358 lines
11 KiB
PHP
358 lines
11 KiB
PHP
<?php
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/**
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* Base class for Shells
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*
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* Long description for file
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*
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* PHP versions 4 and 5
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*
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* CakePHP(tm) : Rapid Development Framework <http://www.cakephp.org/>
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* Copyright 2005-2008, Cake Software Foundation, Inc.
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* 1785 E. Sahara Avenue, Suite 490-204
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* Las Vegas, Nevada 89104
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* Modified for Postfixadmin by Valkum
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*
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* Copyright 2010
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*
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* Licensed under The MIT License
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* Redistributions of files must retain the above copyright notice.
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*
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* @filesource
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* @copyright Copyright 2005-2008, Cake Software Foundation, Inc.
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* @link http://postfixadmin.sourceforge.net/ Postfixadmin on Sourceforge
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* @package postfixadmin
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* @subpackage -
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* @since -
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* @version $Revision$
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* @modifiedby $LastChangedBy$
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* @lastmodified $Date$
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* @license http://www.opensource.org/licenses/mit-license.php The MIT License
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*/
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class Shell {
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/**
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* An instance of the ShellDispatcher object that loaded this script
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*
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* @var object
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* @access public
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*/
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var $Dispatch = null;
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/**
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* If true, the script will ask for permission to perform actions.
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*
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* @var boolean
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* @access public
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*/
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var $interactive = true;
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/**
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* Holds the DATABASE_CONFIG object for the app. Null if database.php could not be found,
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* or the app does not exist.
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*
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* @var object
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* @access public
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*/
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var $DbConfig = null;
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/**
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* Contains command switches parsed from the command line.
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*
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* @var array
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* @access public
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*/
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var $params = array();
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/**
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* Contains arguments parsed from the command line.
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*
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* @var array
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* @access public
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*/
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var $args = array();
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/**
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* The file name of the shell that was invoked.
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*
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* @var string
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* @access public
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*/
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var $shell = null;
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/**
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* The class name of the shell that was invoked.
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*
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* @var string
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* @access public
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*/
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var $className = null;
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/**
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* The command called if public methods are available.
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*
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* @var string
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* @access public
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*/
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var $command = null;
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/**
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* The name of the shell in camelized.
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*
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* @var string
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* @access public
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*/
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var $name = null;
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/**
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* Contains tasks to load and instantiate
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*
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* @var array
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* @access public
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*/
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var $tasks = array();
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/**
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* Contains the loaded tasks
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*
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* @var array
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* @access public
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*/
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var $taskNames = array();
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/**
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* Contains models to load and instantiate
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*
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* @var array
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* @access public
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*/
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var $uses = array();
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/**
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* Constructs this Shell instance.
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*
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*/
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function __construct(&$dispatch) {
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$vars = array('params', 'args', 'shell', 'shellCommand'=> 'command');
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foreach ($vars as $key => $var) {
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if (is_string($key)) {
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$this->{$var} =& $dispatch->{$key};
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} else {
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$this->{$var} =& $dispatch->{$var};
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}
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}
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$this->className = get_class($this);
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if ($this->name == null) {
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$this->name = str_replace(array('shell', 'Shell', 'task', 'Task'), '', $this->className);
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}
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$shellKey = Inflector::underscore($this->className);
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if (!PHP5 && isset($this->args[0])) {
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if(strpos($this->className, strtolower(Inflector::camelize($this->args[0]))) !== false) {
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$dispatch->shiftArgs();
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}
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if (strtolower($this->command) == strtolower(Inflector::variable($this->args[0])) && method_exists($this, $this->command)) {
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$dispatch->shiftArgs();
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}
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}
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$this->Dispatch =& $dispatch;
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}
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/**
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* Initializes the Shell
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* acts as constructor for subclasses
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* allows configuration of tasks prior to shell execution
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*
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* @access public
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*/
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function initialize() {
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}
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/**
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* Starts up the the Shell
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* allows for checking and configuring prior to command or main execution
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* can be overriden in subclasses
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*
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* @access public
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*/
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function startup() {
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#CHECK!
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if ( empty($this->params['q'] ) ) {
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$this->_welcome();
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}
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$CONF = Config::read('all');
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}
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/**
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* Displays a header for the shell
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*
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* @access protected
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*/
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function _welcome() {
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$this->out("\nWelcome to Postfixadmin-CLI v" . $this->Dispatch->version);
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$this->out("---------------------------------------------------------------");
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$this->out('Path: '. PATH);
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$this->hr();
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}
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/**
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* Loads tasks defined in var $tasks
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*
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* @return bool
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* @access public
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*/
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function loadTasks() {
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if ($this->tasks === null || $this->tasks === false) {
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return;
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}
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if ($this->tasks !== true && !empty($this->tasks)) {
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$tasks = $this->tasks;
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if (!is_array($tasks)) {
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$tasks = array($tasks);
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}
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foreach ($tasks as $taskName) {
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$task = Inflector::underscore($taskName);
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$taskClass = Inflector::camelize($taskName.'Task');
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$taskKey = Inflector::underscore($taskClass);
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if (!class_exists($taskClass)) {
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foreach ($this->Dispatch->shellPaths as $path) {
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$taskPath = $path . 'tasks' . DS . $task.'.php';
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if (file_exists($taskPath)) {
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require_once $taskPath;
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break;
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}
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}
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}
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$this->taskNames[] = $taskName;
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if (!PHP5) {
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$this->{$taskName} = new $taskClass($this->Dispatch);
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} else {
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$this->{$taskName} = new $taskClass($this->Dispatch);
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}
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if (!isset($this->{$taskName})) {
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$this->err("Task '".$taskName."' could not be loaded");
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$this->_stop();
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}
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}
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}
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return false;
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}
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/**
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* Prompts the user for input, and returns it.
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*
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* @param string $prompt Prompt text.
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* @param mixed $options Array or string of options.
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* @param string $default Default input value.
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* @return Either the default value, or the user-provided input.
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* @access public
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*/
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function in($prompt, $options = null, $default = null) {
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if (!$this->interactive) {
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return $default;
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}
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$in = $this->Dispatch->getInput($prompt, $options, $default);
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if ($options && is_string($options)) {
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if (strpos($options, ',')) {
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$options = explode(',', $options);
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} elseif (strpos($options, '/')) {
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$options = explode('/', $options);
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} else {
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$options = array($options);
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}
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}
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if (is_array($options)) {
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while ($in == '' || ($in && (!in_array(strtolower($in), $options) && !in_array(strtoupper($in), $options)) && !in_array($in, $options))) {
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$in = $this->Dispatch->getInput($prompt, $options, $default);
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}
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}
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if ($in) {
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return $in;
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}
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}
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/**
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* Outputs to the stdout filehandle.
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*
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* @param string $string String to output.
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* @param boolean $newline If true, the outputs gets an added newline.
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* @access public
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*/
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function out($string, $newline = true) {
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if (is_array($string)) {
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$str = '';
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foreach($string as $message) {
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$str .= $message ."\n";
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}
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$string = $str;
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}
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return $this->Dispatch->stdout($string, $newline);
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}
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/**
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* Outputs to the stderr filehandle.
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*
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* @param string $string Error text to output.
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* @access public
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*/
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function err($string) {
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if (is_array($string)) {
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$str = '';
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foreach($string as $message) {
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$str .= $message ."\n";
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}
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$string = $str;
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}
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return $this->Dispatch->stderr($string."\n");
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}
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/**
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* Outputs a series of minus characters to the standard output, acts as a visual separator.
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*
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* @param boolean $newline If true, the outputs gets an added newline.
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* @access public
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*/
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function hr($newline = false) {
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if ($newline) {
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$this->out("\n");
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}
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$this->out('---------------------------------------------------------------');
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if ($newline) {
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$this->out("\n");
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}
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}
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/**
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* Displays a formatted error message and exits the application
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*
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* @param string $title Title of the error message
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* @param string $msg Error message
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* @access public
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*/
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function error($title, $msg) {
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$out = "$title\n";
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$out .= "$msg\n";
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$out .= "\n";
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$this->err($out);
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$this->_stop(1);
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}
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/**
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* Outputs usage text on the standard output. Implement it in subclasses.
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*
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* @access public
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*/
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function help() {
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if ($this->command != null) {
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$this->err("Unknown {$this->name} command '$this->command'.\nFor usage, try 'cake {$this->shell} help'.\n\n");
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} else {
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$this->Dispatch->help();
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}
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}
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/**
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* Stop execution of the current script
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*
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* @param $status see http://php.net/exit for values
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* @return void
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* @access public
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*/
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function _stop($status = 0) {
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exit($status);
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}
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}
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