<?php
/*
 * Copyright 2005 - 2009  Zarafa B.V.
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License, version 3, 
 * as published by the Free Software Foundation with the following additional 
 * term according to sec. 7:
 *  
 * According to sec. 7 of the GNU Affero General Public License, version
 * 3, the terms of the AGPL are supplemented with the following terms:
 * 
 * "Zarafa" is a registered trademark of Zarafa B.V. The licensing of
 * the Program under the AGPL does not imply a trademark license.
 * Therefore any rights, title and interest in our trademarks remain
 * entirely with us.
 * 
 * However, if you propagate an unmodified version of the Program you are
 * allowed to use the term "Zarafa" to indicate that you distribute the
 * Program. Furthermore you may use our trademarks where it is necessary
 * to indicate the intended purpose of a product or service provided you
 * use it in accordance with honest practices in industrial or commercial
 * matters.  If you want to propagate modified versions of the Program
 * under the name "Zarafa" or "Zarafa Server", you may only do so if you
 * have a written permission by Zarafa B.V. (to acquire a permission
 * please contact Zarafa at trademark@zarafa.com).
 * 
 * The interactive user interface of the software displays an attribution
 * notice containing the term "Zarafa" and/or the logo of Zarafa.
 * Interactive user interfaces of unmodified and modified versions must
 * display Appropriate Legal Notices according to sec. 5 of the GNU
 * Affero General Public License, version 3, when you propagate
 * unmodified or modified versions of the Program. In accordance with
 * sec. 7 b) of the GNU Affero General Public License, version 3, these
 * Appropriate Legal Notices must retain the logo of Zarafa or display
 * the words "Initial Development by Zarafa" if the display of the logo
 * is not reasonably feasible for technical reasons."
 * 
 * This program 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 Affero General Public License for more details.
 *  
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 * 
 */

?>
<?php
	// Constants for regular expressions which are used in get method to verify the input string
	define("ID_REGEX", "/^[a-z0-9_]+$/im");
	define("STRING_REGEX", "/^[a-z0-9_\s()@]+$/im");
	define("ALLOWED_EMAIL_CHARS_REGEX", "/^[-a-z0-9_\.@!#\$%&'\*\+/=\?\^_`\{\|\}~]+$/im");
	define("TIMESTAMP_REGEX", "/^[0-9]+$/im");
	define("NUMERIC_REGEX", "/^[0-9]+$/im");
	// Don't allow "\/:*?"<>|" characters in filename.
	define("FILENAME_REGEX", "/^[^\/\:\*\?\"\<\>\|\\\]+$/im");

	/**
	* Function to retrieve a $_GET variable to prevent XSS
	*
	* $var = varibale requested
	* $default = default result when $var doesn't exist
	* $usequote = if $var must be surrounded by quotes, note that $default isn't surrounded by quotes even if this is set here!
	* $regex = To prevent unusual hackers attack / validate the values send from client.
	*/	
	function get($var, $default="", $usequote=false, $regex = false){
		$result = $default;
		if (isset($_GET[$var])){
			$result = addslashes($_GET[$var]);
			if($regex) {
				$match = preg_match_all($regex, $result, $matches);
				if(!$match){
					$result = false;
					$usequote = false;
				}
			}
			if ($usequote===true) 
				$usequote = "'";
			if ($usequote!==false)
				$result = $usequote.$result.$usequote;
		}
		return $result;
	}


	function createConfirmButtons($onclick)
	{
		$buttons = "<div class=\"confirmbuttons\">\n";
		$buttons .= "<input class=\"buttonsize\" type=\"button\" value=\"" . _("Ok") . "\" onclick=\"" . $onclick . "\">\n";
		$buttons .= "<input class=\"buttonsize\" type=\"button\" value=\"". _("Cancel") . "\" onclick=\"window.close();\">\n";
		$buttons .= "</div>\n";
		
		return $buttons;
	}
	
	function createCloseButton($onclick)
	{
		$buttons = "<div class=\"closebutton\">\n";
		$buttons .= "<input class=\"buttonsize\" type=\"button\" value=\"" . _("Close") . "\" onclick=\"" . $onclick . "\">\n";
		$buttons .= "</div>\n";
		
		return $buttons;
	}
	
	/**
	* Function to get some buttons
	*
	* one button is specified as an array argument, use multiple arguments for more buttons
	*
	* array("title"=>"Ok", "handler"=>"submit();", "shortcut"=>"S")
	*/	
	function createButtons()
	{
		$argc = func_num_args();
		$argv = func_get_args();
		
		$buttons = "<div class=\"buttons\">\n";
		for($i=0; $i<$argc; $i++){
			$title   = isset($argv[$i]["title"])   ? $argv[$i]["title"]   : _("Button");
			$handler = isset($argv[$i]["handler"]) ? $argv[$i]["handler"] : "alert('Not implemented');";
			$shortcut= isset($argv[$i]["shortcut"])? " accesskey=\"".$argv[$i]["shortcut"]."\"": "";

			
			$buttons .= "<input class=\"buttonsize\" type=\"button\" value=\"" . $title . "\" onclick=\"" . $handler . "\"".$shortcut.">\n";
		}
		$buttons .= "</div>\n";
		
		return $buttons;
	}
?>
