set default dns server in config-templates; separate CmdLineHandler from switch-server-ip script for further usage

Signed-off-by: Michael Kaufmann (d00p) <d00p@froxlor.org>

lib/classes/output/class.CmdLineHandler.php

@@ -0,0 +1,196 @@
+<?php
+
+/**
+ * This file is part of the Froxlor project.
+ * Copyright (c) 2018 the Froxlor Team (see authors).
+ *
+ * For the full copyright and license information, please view the COPYING
+ * file that was distributed with this source code. You can also view the
+ * COPYING file online at http://files.froxlor.org/misc/COPYING.txt
+ *
+ * @copyright (c) the authors
+ * @author Froxlor team <team@froxlor.org> (2018-)
+ * @license GPLv2 http://files.froxlor.org/misc/COPYING.txt
+ * @package Cron
+ *
+ */
+abstract class CmdLineHandler
+{
+
+	/**
+	 * internal variable for passed arguments
+	 *
+	 * @var array
+	 */
+	private static $args = null;
+
+	/**
+	 * Action object read from commandline/config
+	 *
+	 * @var Action
+	 */
+	private $_action = null;
+
+	/**
+	 * Returns a CmdLineHandler object with given
+	 * arguments from command line
+	 *
+	 * @param int $argc
+	 * @param array $argv
+	 *
+	 * @return CmdLineHandler
+	 */
+	public static function processParameters($argc, $argv)
+	{
+		$me = get_called_class();
+		return new $me($argc, $argv);
+	}
+
+	/**
+	 * returns the Action object generated in
+	 * the class constructor
+	 *
+	 * @return Action
+	 */
+	public function getAction()
+	{
+		return $this->_action;
+	}
+
+	/**
+	 * class constructor, validates the command line parameters
+	 * and sets the Action-object if valid
+	 *
+	 * @param int $argc
+	 * @param string[] $argv
+	 *
+	 * @return null
+	 * @throws Exception
+	 */
+	private function __construct($argc, $argv)
+	{
+		self::$args = $this->_parseArgs($argv);
+		$this->_action = $this->_createAction();
+	}
+
+	/**
+	 * Parses the arguments given via the command line;
+	 * three types are supported:
+	 * 1.
+	 * --parm1 or --parm2=value
+	 * 2. -xyz (multiple switches in one) or -a=value
+	 * 3. parm1 parm2
+	 *
+	 * The 1. will be mapped as
+	 * ["parm1"] => true, ["parm2"] => "value"
+	 * The 2. as
+	 * ["x"] => true, ["y"] => true, ["z"] => true, ["a"] => "value"
+	 * And the 3. as
+	 * [0] => "parm1", [1] => "parm2"
+	 *
+	 * @param array $argv
+	 *
+	 * @return array
+	 */
+	private function _parseArgs($argv)
+	{
+		array_shift($argv);
+		$o = array();
+		foreach ($argv as $a) {
+			if (substr($a, 0, 2) == '--') {
+				$eq = strpos($a, '=');
+				if ($eq !== false) {
+					$o[substr($a, 2, $eq - 2)] = substr($a, $eq + 1);
+				} else {
+					$k = substr($a, 2);
+					if (! isset($o[$k])) {
+						$o[$k] = true;
+					}
+				}
+			} else if (substr($a, 0, 1) == '-') {
+				if (substr($a, 2, 1) == '=') {
+					$o[substr($a, 1, 1)] = substr($a, 3);
+				} else {
+					foreach (str_split(substr($a, 1)) as $k) {
+						if (! isset($o[$k])) {
+							$o[$k] = true;
+						}
+					}
+				}
+			} else {
+				$o[] = $a;
+			}
+		}
+		return $o;
+	}
+
+	/**
+	 * Creates an Action-Object for the Action-Handler
+	 *
+	 * @return Action
+	 * @throws Exception
+	 */
+	private function _createAction()
+	{
+		
+		// Test for help-switch
+		if (empty(self::$args) || array_key_exists("help", self::$args) || array_key_exists("h", self::$args)) {
+			static::printHelp();
+			// end of execution
+		}
+		// check if no unknown parameters are present
+		foreach (self::$args as $arg => $value) {
+			
+			if (is_numeric($arg)) {
+				throw new Exception("Unknown parameter '" . $value . "' in argument list");
+			} elseif (! in_array($arg, static::$params) && ! in_array($arg, static::$switches)) {
+				throw new Exception("Unknown parameter '" . $arg . "' in argument list");
+			}
+		}
+		
+		// set debugger switch
+		if (isset(self::$args["d"]) && self::$args["d"] == true) {
+			// Debugger::getInstance()->setEnabled(true);
+			// Debugger::getInstance()->debug("debug output enabled");
+		}
+		
+		return new static::$action_class(self::$args);
+	}
+
+	public static function getInput($prompt = "#", $default = "")
+	{
+		if (! empty($default)) {
+			$prompt .= " [" . $default . "]";
+		}
+		$result = readline($prompt . ":");
+		if (empty($result) && ! empty($default)) {
+			$result = $default;
+		}
+		return mb_strtolower($result);
+	}
+
+	public static function println($msg = "")
+	{
+		print $msg . PHP_EOL;
+	}
+
+	private static function _printcolor($msg = "", $color = "0")
+	{
+		print "\033[" . $color . "m" . $msg . "\033[0m" . PHP_EOL;
+	}
+
+	public static function printerr($msg = "")
+	{
+		self::_printcolor($msg, "31");
+	}
+
+	public static function printsucc($msg = "")
+	{
+		self::_printcolor($msg, "32");
+	}
+
+	public static function printwarn($msg = "")
+	{
+		self::_printcolor($msg, "33");
+	}
+}

lib/configfiles/gentoo.xml

@@ -353,7 +353,7 @@ exit "$RETVAL"
 			<!--DNS -->
 			<service type="dns" title="{{lng.admin.configfiles.dns}}">
 				<!--Bind9 -->
-				<daemon name="bind" title="Bind9 nameserver">
+				<daemon name="bind" title="Bind9 nameserver" default="true">
 					<install><![CDATA[emerge net-dns/bind]]></install>
 					<file name="/etc/bind/default.zone">
 						<content><![CDATA[

lib/configfiles/jessie.xml

@@ -365,7 +365,7 @@ exit "$RETVAL"
 			<!--DNS -->
 			<service type="dns" title="{{lng.admin.configfiles.dns}}">
 				<!--Bind9 -->
-				<daemon name="bind" title="Bind9 nameserver">
+				<daemon name="bind" title="Bind9 nameserver" default="true">
 					<install><![CDATA[apt-get install bind9]]></install>
 					<command><![CDATA[echo "include \"{{settings.system.bindconf_directory}}froxlor_bind.conf\";" >> /etc/bind/named.conf.local]]></command>
 					<command><![CDATA[touch {{settings.system.bindconf_directory}}froxlor_bind.conf]]></command>

lib/configfiles/precise.xml

@@ -334,7 +334,7 @@ exit "$RETVAL"
 			<!--DNS -->
 			<service type="dns" title="{{lng.admin.configfiles.dns}}">
 				<!--Bind9 -->
-				<daemon name="bind" title="Bind9 nameserver">
+				<daemon name="bind" title="Bind9 nameserver" default="true">
 					<install><![CDATA[apt-get install bind9]]></install>
 					<command><![CDATA[echo "include \"{{settings.system.bindconf_directory}}froxlor_bind.conf\";" >> /etc/bind/named.conf]]></command>
 					<command><![CDATA[touch {{settings.system.bindconf_directory}}froxlor_bind.conf]]></command>

lib/configfiles/stretch.xml

@@ -354,7 +354,7 @@ exit "$RETVAL"
 			<!--DNS -->
 			<service type="dns" title="{{lng.admin.configfiles.dns}}">
 				<!--Bind9 -->
-				<daemon name="bind" title="Bind9 nameserver">
+				<daemon name="bind" title="Bind9 nameserver" default="true">
 					<install><![CDATA[apt-get install bind9]]></install>
 					<command><![CDATA[echo "include \"{{settings.system.bindconf_directory}}froxlor_bind.conf\";" >> /etc/bind/named.conf.local]]></command>
 					<command><![CDATA[touch {{settings.system.bindconf_directory}}froxlor_bind.conf]]></command>

lib/configfiles/trusty.xml

@@ -367,7 +367,7 @@ exit "$RETVAL"
 			<!--DNS -->
 			<service type="dns" title="{{lng.admin.configfiles.dns}}">
 				<!--Bind9 -->
-				<daemon name="bind" title="Bind9 nameserver">
+				<daemon name="bind" title="Bind9 nameserver" default="true">
 					<install><![CDATA[apt-get install bind9]]></install>
 					<command><![CDATA[echo "include \"{{settings.system.bindconf_directory}}froxlor_bind.conf\";" >> /etc/bind/named.conf]]></command>
 					<command><![CDATA[touch {{settings.system.bindconf_directory}}froxlor_bind.conf]]></command>

lib/configfiles/wheezy.xml

@@ -407,7 +407,7 @@ exit "$RETVAL"
 			<!--DNS -->
 			<service type="dns" title="{{lng.admin.configfiles.dns}}">
 				<!--Bind9 -->
-				<daemon name="bind" title="Bind9 nameserver">
+				<daemon name="bind" title="Bind9 nameserver" default="true">
 					<install><![CDATA[apt-get install bind9]]></install>
 					<command><![CDATA[echo "include \"{{settings.system.bindconf_directory}}froxlor_bind.conf\";" >> /etc/bind/named.conf.local]]></command>
 					<command><![CDATA[touch {{settings.system.bindconf_directory}}froxlor_bind.conf]]></command>